A method of performance estimation for axial-flow turbines based on losses prediction

Journal of Mechanical Research and Application

مقاله 5، دوره 4، شماره 1، شهریور 2012، صفحه 35-43   

نویسندگان

H. Javaniyan Jouybari^{* 1}؛ M. Eftari²؛ M. R. Shahhoseini³؛ F. Ghadak⁴؛ M. Rad⁵

¹M. Sc. Student, South Tehran Branch, Islamic Azad University, Tehran, Iran

².M. Sc. Student, Department of Mechanical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

³Assistant Professor, Department of Mechanical Engineering, Science & Research Branch, Islamic Azad University, Tehran, Iran

⁴Assistant Professor, Ghadr Aerodynamic Research Center, Imam Hossein University, Tehran, Iran

⁵Professor, Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran

چکیده

The main objective in this paper is creating a method for one-dimensional modeling of multi stage axial flow turbine. The calculation used in this technique is based on common thermodynamics and aerodynamics principles in a mean stream line analyses. In this approach, loss models have to be used to determine the entropy increase across each section in the turbine stage. Finally, the analysis and comparisons between the calculated results and experimental data are performed.

کلیدواژه‌ها

Two-stage axial flow turbine؛ Modeling؛ Total loss coefficient؛ Loss model؛ Performance curve